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冻融破解预处理剩余污泥及强化微生物电解池处理效能

孙杏 胡凯 雷晨雨 陈卫

孙杏, 胡凯, 雷晨雨, 陈卫. 冻融破解预处理剩余污泥及强化微生物电解池处理效能[J]. 环境工程, 2021, 39(4): 147-155. doi: 10.13205/j.hjgc.202104023
引用本文: 孙杏, 胡凯, 雷晨雨, 陈卫. 冻融破解预处理剩余污泥及强化微生物电解池处理效能[J]. 环境工程, 2021, 39(4): 147-155. doi: 10.13205/j.hjgc.202104023
SUN Xing, HU Kai, LEI Chen-yu, CHEN Wei. EFFECT OF FREEZING/THAWING PRETREATMENT ON EXCESS SLUDGE DISINTEGRATION AND TREATMENT EFFICIENCY OF MICROBIAL ELECTROLYSIS CELL[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 147-155. doi: 10.13205/j.hjgc.202104023
Citation: SUN Xing, HU Kai, LEI Chen-yu, CHEN Wei. EFFECT OF FREEZING/THAWING PRETREATMENT ON EXCESS SLUDGE DISINTEGRATION AND TREATMENT EFFICIENCY OF MICROBIAL ELECTROLYSIS CELL[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 147-155. doi: 10.13205/j.hjgc.202104023

冻融破解预处理剩余污泥及强化微生物电解池处理效能

doi: 10.13205/j.hjgc.202104023
基金项目: 

中央高校科研业务费(2021B14552);江苏高校品牌专业建设工程资助项目(PPZY2015A051);江苏高校优势学科建设工程资助项目(PAPD)。

详细信息
    作者简介:

    孙杏(1996-),女,硕士研究生,主要研究方向为水处理理论与技术。1240517731@qq.com

    通讯作者:

    胡凯(1983-),男,副研究员,主要研究方向为污水及污泥处理及资源化技术。hukaihit@hhu.edu.cn

EFFECT OF FREEZING/THAWING PRETREATMENT ON EXCESS SLUDGE DISINTEGRATION AND TREATMENT EFFICIENCY OF MICROBIAL ELECTROLYSIS CELL

  • 摘要: 针对微生物电解池(MEC)处理剩余污泥时水解速率慢、有机质降解率低的问题,采用冻融破解预处理剩余污泥,探讨了冻融对污泥泥质的影响及对后续MEC处理效能的强化作用。结果表明:冻融处理可以有效促进污泥絮体解散、细胞破裂及有机物溶出,在-18℃冷冻72 h,26℃融解3 h后,污泥SCOD增加了2.58倍。以冻融污泥为底物的MEC装置,在0.7 V外加电压条件下,污泥SS和TCOD去除率分别超过40%和60%。与未经处理的原泥相比,冻融处理提高了MEC装置的库伦效率和阴极H2回收率,分别提高了5.8%和6.7%。微生物群落分析表明,冻融预处理促进了微生物电解过程中产电菌群(如变形菌门(Proteobacteria)、厚壁菌门(Firmicutes))的生长和富集,改善了剩余污泥的资源利用和能源回收效益。
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出版历程
  • 收稿日期:  2020-08-28
  • 网络出版日期:  2021-07-21

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